package com.mew.common.util;



import java.io.*;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.TimeUnit;

import com.alibaba.fastjson.JSONObject;
import lombok.extern.slf4j.Slf4j;
import okhttp3.*;

/**

 * @author King.Song

 */
@Slf4j
public class HttpUtils {

    private static final OkHttpClient client = new OkHttpClient();
    /**
     * 发送GET请求
     *
     * @param url
     *            目的地址
     * @param parameters
     *            请求参数，Map类型。
     * @return 远程响应结果
     */
    public static String sendGet(String url, Map<String, String> parameters) {
        String result="";
        BufferedReader in = null;// 读取响应输入流
        StringBuffer sb = new StringBuffer();// 存储参数
        String params = "";// 编码之后的参数
        try {
            // 编码请求参数
            if(parameters.size()==1){
                for(String name:parameters.keySet()){
                    sb.append(name).append("=").append(
                            java.net.URLEncoder.encode(parameters.get(name),
                                    "UTF-8"));
                }
                params=sb.toString();
            }else{
                for (String name : parameters.keySet()) {
                    sb.append(name).append("=").append(
                            java.net.URLEncoder.encode(parameters.get(name),
                                    "UTF-8")).append("&");
                }
                String temp_params = sb.toString();
                params = temp_params.substring(0, temp_params.length() - 1);
            }
            String full_url = url + "?" + params;
//            System.out.println(full_url);
            // 创建URL对象
            java.net.URL connURL = new java.net.URL(full_url);
            // 打开URL连接
            java.net.HttpURLConnection httpConn = (java.net.HttpURLConnection) connURL
                    .openConnection();
            // 设置通用属性
            httpConn.setRequestProperty("Accept", "*/*");
            httpConn.setRequestProperty("Connection", "Keep-Alive");
            httpConn.setRequestProperty("User-Agent",
                    "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1)");
            // 建立实际的连接
            httpConn.connect();
            // 响应头部获取
            Map<String, List<String>> headers = httpConn.getHeaderFields();
            // 遍历所有的响应头字段
//            for (String key : headers.keySet()) {
//                System.out.println(key + "\t：\t" + headers.get(key));
//            }
            // 定义BufferedReader输入流来读取URL的响应,并设置编码方式
            in = new BufferedReader(new InputStreamReader(httpConn
                    .getInputStream(), "UTF-8"));
            String line;
            // 读取返回的内容
            while ((line = in.readLine()) != null) {
                result += line;
            }
        } catch (Exception e) {
            log.error("http error:{}",e);
        }finally{
            try {
                if (in != null) {
                    in.close();
                }
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
        return result ;
    }

    public static String get(String url) {
        String result="";
        BufferedReader in = null;// 读取响应输入流
        StringBuffer sb = new StringBuffer();// 存储参数

        try {

            String full_url = url ;
//            System.out.println(full_url);
            // 创建URL对象
            java.net.URL connURL = new java.net.URL(full_url);
            // 打开URL连接
            java.net.HttpURLConnection httpConn = (java.net.HttpURLConnection) connURL
                    .openConnection();
            // 设置通用属性
            httpConn.setRequestProperty("Accept", "*/*");
            httpConn.setRequestProperty("Connection", "Keep-Alive");
            httpConn.setRequestProperty("User-Agent",
                    "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1)");

            // 建立实际的连接
            httpConn.connect();
            // 响应头部获取
            Map<String, List<String>> headers = httpConn.getHeaderFields();
            // 遍历所有的响应头字段
//            for (String key : headers.keySet()) {
//                System.out.println(key + "\t：\t" + headers.get(key));
//            }
            // 定义BufferedReader输入流来读取URL的响应,并设置编码方式
            in = new BufferedReader(new InputStreamReader(httpConn
                    .getInputStream(), "UTF-8"));
            String line;
            // 读取返回的内容
            while ((line = in.readLine()) != null) {
                result += line;
            }
        } catch (Exception e) {
            log.error("http error:{}",e);
        }finally{
            try {
                if (in != null) {
                    in.close();
                }
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
        return result ;
    }

    public static ArrayList<Byte> getBytes(String url) {
        ArrayList<Byte> bytes = new ArrayList<>();
        BufferedReader in = null;// 读取响应输入流
        StringBuffer sb = new StringBuffer();// 存储参数
        String params = "";// 编码之后的参数
        try {

            String full_url = url + "?" + params;
//            System.out.println(full_url);
            // 创建URL对象
            java.net.URL connURL = new java.net.URL(full_url);
            // 打开URL连接
            java.net.HttpURLConnection httpConn = (java.net.HttpURLConnection) connURL
                    .openConnection();
            // 设置通用属性
            httpConn.setRequestProperty("Accept", "*/*");
            httpConn.setRequestProperty("Connection", "Keep-Alive");
            httpConn.setRequestProperty("User-Agent",
                    "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1)");
            // 建立实际的连接
            httpConn.connect();
            // 响应头部获取
            Map<String, List<String>> headers = httpConn.getHeaderFields();
            // 遍历所有的响应头字段
//            for (String key : headers.keySet()) {
//                System.out.println(key + "\t：\t" + headers.get(key));
//            }
            // 定义BufferedReader输入流来读取URL的响应,并设置编码方式
            InputStream inputStream = httpConn.getInputStream();

            byte[] line = new byte[1024];
            // 读取返回的内容
            int s = 0;
            while ((s = inputStream.read(line)) != -1) {
                for (int i = 0; i < s; i++) {
                    bytes.add(line[i]);
                }
            }
        } catch (Exception e) {
            log.error("http error:{}",e);
        }finally{
            try {
                if (in != null) {
                    in.close();
                }
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
        return bytes ;
    }



    public static String getByUrl(String url) throws Exception {
        Request request = new Request.Builder().url(url).build();

        Response response = client.newCall(request).execute();
        if (!response.isSuccessful()) {
            throw new Exception("Unexpected code " + response);
        }
//        Headers responseHeaders = response.headers();
//        for (int i = 0; i < responseHeaders.size(); i++) {
//            System.out.println(responseHeaders.name(i) + ": " + responseHeaders.value(i));
//        }
        return response.body().string();
    }

    public static String post(String url, Map<String, String> params) {
        String responseBody = "";
        FormBody.Builder builder = new FormBody.Builder();
        //添加参数
        if (params != null && params.keySet().size() > 0) {
            for (String key : params.keySet()) {
                builder.add(key, params.get(key));
            }
        }
        Request request = new Request
                .Builder()
                .url(url)
                .post(builder.build())
                .build();
        Response response = null;
        try {
            response = client.newCall(request).execute();
            int status = response.code();
            if (status == 200) {
                return response.body().string();
            }
        } catch (Exception e) {
            log.error("http error:{}",e);
           return responseBody;
        } finally {
            if (response != null) {
                response.close();
            }
        }
        return responseBody;
    }

    //http连接查询接口数据POST
    public static JSONObject okhttpPost(String url,JSONObject jsonObject){
        long startTime  = System.currentTimeMillis();

        JSONObject resultForJson = null;
        //设置媒体类型。application/json表示传递的是一个json格式的对象
        MediaType mediaType = MediaType.parse("application/json;charset=UTF-8");
        //创建okHttpClient对象
        OkHttpClient okhttp = new OkHttpClient();
        //设置okhttp超时
        okhttp.newBuilder().connectTimeout(10000L, TimeUnit.MILLISECONDS).readTimeout(50000,TimeUnit.MILLISECONDS).build();
        //创建RequestBody对象，将参数按照指定的MediaType封装
        RequestBody requestBody = RequestBody.create(mediaType, jsonObject.toString());
        //创建一个Request
        Request request = new Request.Builder().post(requestBody).url(url).build();
        try {
            Response response = okhttp.newCall(request).execute();
            if(!response.isSuccessful())
                throw new IOException("unexpected code.."+response);
            String result = response.body().string();
            resultForJson = JSONObject.parseObject(result);
            response.body().close();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            log.error("http error:{}",e);
            
        }
        return resultForJson;
    }

}
